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steady state theory

/ˈstedi steɪt ˈθɪəri/

Traduction: Théorie cosmologique selon laquelle l'Univers a toujours existé dans un état constant et immuable, la nouvelle matière étant continuellement créée pour maintenir une densité uniforme à mesure que l'Univers s'étend.

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/ˈstedi steɪt ˈθɪəri/C1formalscientific
  • frThéorie cosmologique selon laquelle l'Univers a toujours existé dans un état constant et immuable, la nouvelle matière étant continuellement créée pour maintenir une densité uniforme à mesure que l'Univers s'étend.

A cosmological theory proposing that the universe has always existed in a constant, unchanging state, with new matter continuously created to maintain a uniform density as the universe expands.

  1. Cosmological modelC2formal

    A theory in cosmology proposing that the universe has always existed in a constant, unchanging state, with new matter continuously created to maintain a constant density as the universe expands.

    frthéorie de l'état stationnaire

    • The steady state theory was a major competitor to the Big Bang theory in the mid-20th century.
    • According to the steady state theory, the universe has no beginning or end.
    • Observational evidence, such as cosmic microwave background radiation, eventually discredited the steady state theory.